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Pepperl+Fuchs
132616
DK12-11/124/136
Print Mark Contrast Sensor, Diffuse Mode, 10-30VDC, 11mm ± 2 mm Range, Teach-In, Light/Dark On, 2 Push-Pull O/P, M12 5 Pin, Nickel Plated Die-Cast Zinc, Plastic Optics, -20 to 60°C Ambient Temp., 41.5 x 49 x 15mm (WHD), IP67
$501.76$501.76 -
Pepperl+Fuchs
297897
VDM28-15-L1-IO/73c/110/122, This is the Recommended Replacement for 232769
Distance Photoelectric Sensor, Analog Output, IOLink, Pulse Ranging Technology (PRT), Laser
$650.72$650.72 -
Autonics
BX700-DFR-T
BX Series
Diffuse Reflective Sensor, 24-240VAC/DC, 700mm Sensing Range, Infrared LED, Built-in Sensitivity, Light On/Dark On Switchable, Relay Output, Timer Function, ABS Case, Acrylic Lens, Terminal Block, -25 to +55°C Ambient Temperature, IP66
$110.00$110.00 -
Autonics
BX700-DFR
BX Series
Diffuse Reflective Sensor, 24-240VAC/DC, 700mm Sensing Distance, Opaque/Translucent Target, Infrared LED (940nM), Light On/Dark On Selectable, Relay Contact Output, Terminal Block Connection Type, IP66
$108.00$108.00 -
Baumer
OXH7-Z0500.HI0660.VI
11161809
Light Section Sensor, Pulsed Red Laser Diode, 660nm, 15-28VDC, 13-66mm Width/100-5000mm Distance Measuring Range, 1540Hz, Touch Display, RS485 Adjustment, M12 8-Pin Connector, Aluminum Housing, Glass Front (Optics), -10 to +50°C Operating T
$6,601.60$6,601.60 -
Baumer
OHDK 25G6921
11079946
Diffuse Sensor, Background Suppression, Pulsed Red Laser Diode, Laser Class 1, 10-30VDC, 100-900mm Sensing Distance Tw, Teach-in, Push-Pull, Light/Dark Operate, 2m Cable, 23.4 x 63 x 45mm (WxHxD), Plastic, 0 to +50°C, IP67
$442.69$442.69 -
Baumer
OHDK 25G6912/S14C
11079992
Diffuse Sensor, Background Suppression, Pulsed Red Laser Diode, Laser Class 1, 10-30VDC, 100-1750mm Sensing Distance Tw, Teach-in, Push-Pull, Light/Dark Operate, M12 5-Pin Connector, 23.4 x 63 x 45mm (WxHxD), Plastic, 0 to +50°C, IP67
$560.80$560.80 -
Baumer
OHDK 25G6912
11079991
Diffuse Sensor, Background Suppression, Pulsed Red Laser Diode, Laser Class 1, 10-30VDC, 100-1750mm Sensing Distance Tw, Teach-in, Push-Pull, Light/Dark Operate, 2m Cable, 23.4 x 63 x 45mm (WxHxD), Plastic, 0 to +50°C, IP67
$551.40$551.40 -
Baumer
OG050U.R-GW1O.7VL
11229515
Fork Sensor, Thru-Beam, 50mm Fork Width, Pulsed Red LED, 10-30VDC, 270° Potentiometer, IO-Link, Push-Pull, Light/Dark Operate, M8 3-Pin Connector, Stainless Steel, -25 to +60°C, IP67
$654.60$654.60 -
Baumer
OHDK 25G6911/S14
11079990
Diffuse Sensor, Background Suppression, Pulsed Red Laser Diode, Laser Class 1, 10-30VDC, 100-1750mm Sensing Distance Tw, Teach-in, Push-Pull, Light/Dark Operate, M12 5-Pin Connector, 23.4 x 63 x 45mm (WxHxD), Plastic, 0 to +50°C, IP67
$508.29$508.29 -
Baumer
OHDK 25G6911
11079949
Diffuse Sensor, Background Suppression, Pulsed Red Laser Diode, Laser Class 1, 10-30VDC, 100-1750mm Sensing Distance Tw, Teach-in, Push-Pull, Light/Dark Operate, 2m Cable, 23.4 x 63 x 45mm (WxHxD), Plastic, 0 to +50°C, IP67
$519.60$519.60 -
Baumer
OG050U.L-GW1O.7WL
11229522
Fork Sensor, Thru-Beam, 50mm Fork Width, Pulsed Red Laser Diode, Laser Class 1M, 10-30VDC, 270° Potentiometer, IO-Link, Push-Pull, Light/Dark Operate, M8 3-Pin Connector, Die-Cast Zinc, -25 to +60°C, IP67
$677.09$677.09
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt
How Does a Photoelectric Sensor Work?
Generally a photoelectric sensor consists of the following:
- Transmitter - emits the light beam
- Receiver - detects the light beam and converts it to an electrical signal
Photoelectric sensors detect changes in the light beam caused by the presence/absence, movement or properties of an object.
Types of Photoelectric Sensors:
- Through-Beam (Thru-Beam)
- Transmitter and receiver are two separate units that are directly opposite of each other. The sensor detects when an objects breaks the light beam
- Great for long distance detection
- Ideal for conveyors, counting or monitoring door openings
- Retroreflective (Reflective Mode)
- Transmitter and receiver are in one housing; light beam is reflected back by a reflector. Detection is triggered when an object breaks the beam.
- Medium range detection and easier to install than a through beam
- Ideal for package detection and pallet positioning
- Diffuse (Proximity Mode)
- The transmitter and receiver in one housing; the sensor detects light reflected directly off the target object (no reflector needed)
- Best for short range applications
- Ideal for detecting objects on assembly lines, verifying presence or checking fill level
- Specialized Types:
- Background Suppression: Can ignore objects beyond a set distance, focuses close range
- Color or Contrast Sensors: Detects specific colors or contrast differences
- Distance Measuring Sensors: Mesaure the distance to an object
Categories Related to Photoelectric Sensors:
- Stack lights - signal towers visually communicate the data or alerts that the photoelectric sensors are generating
- Smart relays - photoelectric sensors provide input signals which can process the data and control outputs
- Pushbuttons and estops - if your sensor detects a fault, an operator can use a pushbutton to reset the system
- HMIs - HMIs can dispay the data from the photoelectric sensor which allows you to monitor processes